1. Check eligibility
Confirm the product is within its warranty period and the problem is a manufacturing defect, not wear, misuse or damage.
Company Policy
JMA Attachments Warranty
JMA Attachments stands behind everything we build. If an attachment fails because of how we made it — not because of how it was used — we fix it. This page explains what is covered, for how long, and how to make a claim. Effective January 1, 2025.
Lifetime structural weld warranty
The structural welds on every attachment we manufacture are covered for the life of the product, with no expiration date, provided the attachment is used as intended and properly maintained. If a weld fails because of our workmanship, JMA Attachments will, at our choice, ship a new replacement of the same specification, arrange professional weld repair at a certified facility near you, or reimburse pre-approved repair costs up to the original purchase price.
To start a claim, use our Warranty & Product Issue Claim form.
Two-year manufacturing defect warranty
All attachments are covered against defects in materials and workmanship for two years or 2,000 operating hours from the confirmed delivery date, whichever comes first.
- Year 1 — parts and labor. We repair or replace at no cost, including pre-approved labor.
- Year 2 — parts only. We supply replacement parts at no cost; labor, travel and other expenses are the owner's.
A manufacturing defect is one that originated in our factory — steel that cracks under normal loads because of substandard material, parts made to the wrong dimensions, components that fail early because of a production flaw. Damage from use, wear or age is not a defect.
Hydraulic components
Cylinders, motors and control valves are covered against manufacturing defects for one year or 1,000 hours from delivery, parts and pre-approved labor. Not covered: damage from incorrect hydraulic flow or pressure, contaminated fluid, improper connections, or seal wear after 90 days.
Hydraulic hoses and fittings are covered against manufacturing defects for 90 days. After that they are wear items.
Hydraulic hammers — 24-month component warranty
JMA hydraulic hammers carry a 24-month warranty with coverage that varies by component and hammer class. Periods run from the delivery date.
| Component | JMA 20–140 class | JMA 150–220 class | Coverage / exclusions |
|---|---|---|---|
| Front head | 24 months | 12 months | Cracking |
| Back head | 24 months | 24 months | Cracking |
| Cylinder | 24 months | 12 months | Cracking |
| Piston | 24 months | 12 months | Rust damage excluded |
| Housing (box shell) | 12 months | 3 months | Weld cracking; pins and bushings excluded |
| Cylinder surface scoring | 12 months | 12 months | Abrasion from foreign material excluded |
| Inner control valve | 12 months | 12 months | Surface scoring excluded |
| Accumulator | 12 months | 12 months | Accumulator screw excluded |
| Diaphragm | 3 months | 3 months | — |
| Seal kits | 3 months | 3 months | — |
| Outer control valve | 1 month | 1 month | Surface scoring excluded |
| Through bolts / side bolts | 2 months | 2 months | — |
| Bushing set | 2 months | 2 months | Cracking |
| Rod pin | 2 months | 2 months | Cracking |
| Chisel | Manufacturer's standard | Manufacturer's standard | Wear limit: within 10 % of total chisel length |
Keep the warranty certificate that ships with your hammer; it records the equipment model, cylinder number and purchase date.
Wear items — not covered by any warranty
Wear items are consumable parts expected to degrade with normal use. Replacing them is the owner's responsibility at any age: cutting edges and blades, bucket teeth and adapters, wear plates and liners, pins and bushings, seals and O-rings (after the first 90 days), paint and surface finish, and structural fasteners. Neglecting wear items can damage covered parts — that secondary damage is not covered.
Limits
Our maximum responsibility under any tier is the original price paid for the affected product. We are not responsible for machine damage, project delays, lost income, rental equipment, removal or reinstallation labor, or any indirect or consequential loss. Repair, replacement or parts supply is the sole remedy. No implied warranties apply beyond what is stated here, to the fullest extent allowed by law. This warranty is governed by the laws of the State of Florida; disputes go to mediation, then binding arbitration in Miami-Dade County under American Arbitration Association rules. Only a written document signed by an authorized officer of JM Attachments LLC can change these terms.
How to make a claim
2. Gather the evidence
Invoice or order number, the attachment's serial number from the data plate, confirmed delivery date, operating hours on the attachment and the machine, a written description of the failure and at least six clear photographs from several angles.
3. Email the claim
Send everything to [email protected] with the subject line WARRANTY CLAIM — [Order Number] — [Product].
4. We review
We acknowledge within 2 business days and assign a claim reference number, then issue a written decision within 5 business days of a complete submission. We may ask for more photos or an inspection.
5. Written authorization first
If approved, we send written authorization stating the remedy (replacement, repair or parts), the repair location, the agreed labor rate and any cost cap. Do not start any repair before you have it.
What voids the warranty
Misuse or use outside the designed application; overloading beyond rated capacity; unauthorized modifications (welding, cutting, drilling); improper installation (wrong pin size, incorrect torque, reversed hydraulic connections, incompatible coupler); neglect of greasing, inspection or wear-part replacement; repairs made without our written consent; improper storage in corrosive environments; third-party parts; claims after the warranty period; products not manufactured or sold by JMA Attachments.
Why JMA stands behind its attachments
JMA Attachments builds its attachments in-house and backs them with a lifetime warranty on structural welds and a two-year / 2,000-hour warranty against manufacturing defects. If an attachment fails because of how we made it, not because of how it was used, we fix it.
One rule applies to everything on this page: contact us and get written approval before any repair is made. We cannot reimburse work done without our authorization.
Questions before you file? Email [email protected], Monday to Friday 9 AM to 5 PM ET. Keep the warranty certificate that ships with a hydraulic hammer; it records the model, cylinder number and purchase date.
- Two Years Warranty
- 14-Day Returns
- Lifetime warranty on structural welds
- Tell us your machine, we confirm the fit before shipping.
- Ships Nationwide from Miami
Warranty FAQ
Short answers on what is covered, for how long, wear parts, hammers and how to file a claim.
Structural welds are covered for the life of the product. Manufacturing defects are covered for two years or 2,000 operating hours from the confirmed delivery date, whichever comes first: year one parts and pre-approved labor, year two parts only.
No. Wear items are consumables expected to degrade with normal use and are not covered at any age: cutting edges and blades, bucket teeth and adapters, wear plates and liners, pins and bushings, seals and O-rings after the first 90 days, paint and finish, and structural fasteners. Replacement wear parts are stocked in Miami.
Yes. JMA hydraulic hammers carry a 24-month warranty with coverage that varies by component and hammer class: front head, back head, cylinder and piston up to 24 months on the 20–140 class (12 months on most of them for the 150–220 class), housing and hydraulic components 12 months, seals and diaphragm 3 months, bolts, bushings and rod pins 2 months. Chisels follow the manufacturer's standard with a 10 % wear limit.
Hydraulic cylinders, motors and control valves are covered against manufacturing defects for one year or 1,000 hours, parts and pre-approved labor. Hoses and fittings are covered for 90 days. Damage from incorrect flow or pressure, contaminated fluid or improper connections is not covered.
Only with written authorization from JMA first. Repairs made without our authorization are not reimbursed. Once a claim is approved we state the remedy, the repair location, the agreed labor rate and any cost cap in writing.
Email [email protected] with the subject WARRANTY CLAIM — [Order Number] — [Product], your invoice, serial number, delivery date, operating hours, a description and at least six photos. We acknowledge within 2 business days and give a written decision within 5 business days of a complete submission.
Misuse or use outside the designed application, overloading, unauthorized modifications such as welding or drilling, improper installation (wrong pin size, incorrect torque, reversed hydraulic lines, incompatible coupler), neglect of greasing and inspection, improper storage, third-party parts, an expired period, or a product not sold by JMA.
Our maximum responsibility under any tier is the original price paid for the affected product. Machine damage, delays, lost income, rental equipment and removal or reinstallation labor are not covered. Florida law applies; disputes go to mediation, then arbitration in Miami-Dade County.
